Sand Making & Shaping

GVSI Series
VSI Crusher

Name: GVSI Series VSI Crusher
Brand: Gabbro Crusher
Price: 1 INR
Availability: InStock

Vertical Shaft Impact Crusher

Capacity Range 20 - 200 tph

Rotor Speed 1500 RPM

Max Feed Size 25.0 mm

The GVSI Series VSI Crusher is engineered for premium manufactured sand production, delivering superior cubical particle shape and consistent gradation that meets strict IS 383 standards.

Unlike traditional crushers that produce elongated particles, our rock-on-rock impact technology maximizes the value of every tonne processed. The balanced rotor design ensures smooth high-speed operation with low vibration, extending bearing life in continuous 24/7 quarry operations.

Technical Advantages

Superior cubical particle shape — zero flaky or elongated output
High-speed 1500 RPM rotor for maximum impact efficiency
Rock-on-rock crushing significantly lowers wear cost per tonne
Ideal as tertiary stage after jaw and cone crusher circuits
Suitable for granite, basalt, limestone, and river gravel

Typical Applications

M-Sand Production P-Sand Production Aggregate Shaping Tertiary Crushing Concrete Batching Plants

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Technical Data

GVSI Series VSI Crusher
Specifications

All GVSI Series VSI Crushers are manufactured to order. Specifications are subject to change without notice. Contact Gabbro Crusher for custom configurations and capacity requirements.

Model	Feeding SizeMax (mm)	Rotor RPMSpeed	Motor Capacity(HP)	Capacity — M-Sand3.5–4.5mm mesh (TPH)	Capacity — Aggregates(TPH)
GVSI 30	20	1500	30	7 / 9	20
GVSI 50	20	1500	50	10 / 15	30
GVSI 100	20	1500	100	20 / 30	80
GVSI 150	20	1500	150	30 / 45	120
GVSI 250	25	1500	250	50 / 75	200

Technical Guide

How a VSI Crusher Makes Sand —
And Why Washing Makes It Better

As a VSI crusher manufacturer in India, one of the most common questions we get from quarry operators across Northeast India, Nepal, and Bhutan is: "Can I produce M-Sand or P-Sand directly from a VSI crusher?" The short answer is — a VSI crusher alone produces raw crushed sand, not finished M-Sand. Here is why a VSI + Sand Washer is the industry standard.

Raw Feed Material

Crushed stone (10–25mm) from jaw or cone crusher fed into VSI at a controlled rate.

↓

GVSI Crusher

High-speed rotor at 1500 RPM shapes and reduces material into cubical sand particles.

↓

G Wash Washer

Hydro cyclone removes dust and clay → delivers IS 383 grade M-Sand or P-Sand.

❌ VSI Crusher Alone

Raw Crushed Sand
— Low Quality

❌ High dust content (10–15%)
❌ Excess fines below 75 microns
❌ Clay and silt contamination
❌ Fails IS 383 grading limits
❌ Rejected by concrete plants
❌ Lower market selling price

✅ VSI + Sand Washer

Finished M-Sand
— Premium Quality

✅ Dust content controlled below 3%
✅ Fines within IS 383 Zone II limits
✅ Clay and silt completely removed
✅ Passes IS 383 grading requirements
✅ Accepted by all concrete plants
✅ Premium market price realised

Sand Quality — Before & After Washing

❌ Before Washing

Raw VSI Sand

High dust content 10–18% · Fails IS 383 · Low market value · Not suitable for structural concrete

✅ M-Sand

Manufactured Sand

Dust below 3% · IS 383 Zone II compliant · Ideal for concrete & RCC · Premium market price

✅ P-Sand

Plastering Sand

Ultra-fine gradation · Smooth finish · IS 1542 compliant · Used for high-quality plastering & masonry

Note: All three sand types are produced using the same GVSI Series crusher — the difference in quality is entirely determined by the downstream G Wash Series sand washing machine.

Why Every VSI Manufacturer Recommends Sand Washing

When raw feed material — typically 10mm to 25mm crushed stone — enters the GVSI Series VSI crusher, the high-speed rotor at 1500 RPM accelerates the material and impacts it against the rock-lined crushing chamber. This rock-on-rock impact produces well-shaped, cubical particles in the 0–6mm sand size range. However, the crushing process also generates a significant proportion of stone dust — ultra-fine particles below 75 microns — along with any clay or silt present in the original quarry rock.

In Northeast India, Nepal, and Bhutan — where granite, basalt, and quartzite are the dominant rock types — dust generation in the VSI crushing stage can be as high as 12–18% of total output. IS 383:2016 — the Indian Standard for manufactured sand — limits the total fines below 75 microns to a maximum of 15% for M-Sand (Zone II) and requires strict clay limits. Raw VSI-crushed sand almost always exceeds these limits without downstream washing.

This is why we always recommend pairing the GVSI Series VSI crusher with a G Wash Series Hydro Cyclone Washer. The hydro cyclone uses centrifugal force to separate and remove the excess dust, clay, and silt — delivering finished M-Sand or P-Sand that meets IS 383 grading requirements.

Complete Your Sand Plant

Pair your GVSI Crusher with our G Wash Series Sand Washing Machine — the complete M-Sand solution trusted across Northeast India, Nepal & Bhutan.

View Sand Washer →

GVSI Series VSI Crusher Manufacturer

VSI Crusher FAQs

💎 Shaping, Cubicity & M-Sand Production

A VSI crusher improves cubicity through high-velocity impact that breaks material along its natural cleavage planes. The GVSI Series rotor accelerates feed material to tip speeds of 40–70 m/s — at this velocity, impact forces fracture flaky, elongated particles and reshape them into compact, cubical geometry. The result is aggregate with a flakiness index typically under 15% and elongation index under 20% — meeting IS 2386 requirements for premium concrete and asphalt production where particle shape directly affects mix workability and strength.

Yes — VSI crushers are the preferred machine for M-Sand production. The GVSI Series produces manufactured sand by operating at higher rotor speeds to maximise the generation of fines below 4.75mm with ideal cubical particle shape. By optimising the cascading feed system, the GVSI consistently delivers M-Sand meeting IS 383 Zone II gradation standards — making it the ideal M-Sand crusher machine for quarry operators across India, Nepal, and Bhutan where river sand sourcing is increasingly restricted.

The ideal feed material moisture for VSI crushing is under 2% to 3% by weight. Feed above this threshold becomes sticky, causing build-up inside the rotor ports and on the distributor plate — progressively blocking the feed opening and creating dangerous rotor imbalance. Severe build-up triggers high-vibration shutdowns and accelerates wear on all rotor components. For quarry operations during monsoon seasons, screen and pre-dry feed material before the GVSI stage to maintain consistent output and protect rotor balance.

⚙️ Rotor Dynamics & Configuration

Rock-on-Rock (ROR) uses a maintained rock shelf lining the crushing chamber — material ejected from the rotor impacts the rock bed rather than metal. This dramatically reduces wear costs in highly abrasive applications like granite, quartzite, and high-silica materials. Rock-on-Anvil (ROA) replaces the rock shelf with sacrificial metal anvils, increasing the reduction ratio for less abrasive materials like limestone and dolomite. The GVSI Series supports both configurations — ROR is recommended for M-Sand production from granite, while ROA suits aggregate shaping from softer stone.

The cascade system introduces a secondary material stream directly into the crushing chamber outside the rotor — bypassing the rotor entirely. This stream is crushed by the kinetic energy of material exiting the rotor at high velocity, effectively using energy that would otherwise be wasted. The result is significantly higher total throughput without increasing motor load or rotor speed. On the GVSI Series, the cascade ratio is adjustable — higher ratios increase overall capacity while moderating the percentage of sub-75-micron fines produced, giving operators full control over M-Sand gradation.

High vibration is almost always caused by rotor imbalance. The most common triggers are uneven wear on rotor tips — particularly when only some tips are replaced rather than all tips simultaneously — or a partially blocked rotor port restricting material flow asymmetrically. Other causes include oversized feed entering the rotor and material build-up on one side of the distributor plate. Always replace rotor wear parts in diametrically opposed pairs to maintain dynamic balance. If vibration exceeds normal levels, shut down immediately — continuing to operate an unbalanced rotor at 1500 RPM risks catastrophic bearing failure.

🛠️ Wear Parts & Cost Optimisation

Replacement interval depends entirely on material abrasiveness. For highly abrasive materials like granite and quartzite, tip life is typically 30–80 operating hours. For medium-abrasive materials like limestone, tips last 80–150 hours. Tungsten carbide insert tips extend life by 2–3x compared to standard chrome alloy tips in abrasive applications. Always inspect rotor tips at fixed intervals — every shift for hard rock — rather than waiting for visible failure. Worn tips reduce crushing efficiency, increase unwanted fines generation, and risk rotor imbalance if wear becomes asymmetric.

Wear rate increases exponentially with rotor tip speed — not linearly. Doubling tip speed roughly quadruples the wear rate due to the kinetic energy relationship (KE = ½mv²). Even small increases in RPM beyond what is necessary result in disproportionately higher wear costs per tonne. The optimal strategy for the GVSI Series is to run the rotor at the minimum speed that achieves your required product gradation — typically 1500 RPM for standard M-Sand and aggregate shaping. Reduce speed during softer feed periods to maximise tip life and reduce cost per tonne.

The distributor plate sits at the centre of the rotor directly below the feed tube opening. Its primary function is to protect the rotor floor from direct impact damage as raw feed drops from the central hopper — without it, the rotor body suffers rapid erosive wear. Secondarily, it redirects incoming feed evenly outward into the rotor ports, ensuring symmetrical loading. A worn distributor plate causes asymmetric port loading, vibration, and accelerated port wear. It is a sacrificial wear component — inspect every 30–50 operating hours and replace when dish depth exceeds 15mm.

About Our VSI Crushers

Your Trusted VSI Crusher
Manufacturer in India

As a leading VSI crusher manufacturer in India, Gabbro Crusher has been designing and supplying the GVSI Series Vertical Shaft Impact Crusher since 2011 — serving manufactured sand plant operators, aggregate producers, and highway contractors across West Bengal, Northeast India, Nepal, and Bhutan. Every GVSI Series VSI crusher we manufacture is built for continuous high-speed operation at 1500 RPM — delivering consistent cubical product gradation with the lowest wear part cost per tonne.

Our VSI crusher manufacturing facility in India produces the GVSI Series in five models — GVSI 30, GVSI 50, GVSI 100, GVSI 150, and GVSI 250 — covering capacities from 20 TPH to 200 TPH to suit every plant size and production requirement. Whether you need a VSI crusher for an M-Sand plant in Northeast India, a vertical shaft impactor for aggregate shaping in Nepal, or a sand making machine for a highway project in Bhutan — Gabbro Crusher delivers with full installation support and after-sales service.

Looking for the best VSI crusher price in India? Contact Gabbro Crusher today for a free consultation and competitive pricing on the complete GVSI Series VSI crusher range. Our engineering team will help you select the right model for your feed material, required M-Sand gradation, and plant capacity — ensuring maximum productivity and lowest cost per tonne from day one.

GVSI Series
VSI Crusher

Technical Advantages

Typical Applications

GVSI Series VSI Crusher
Specifications